On the heights above the Kaulbach railway station, which has been out of service since late 2000, once lay within Kreimbach's limits a smaller quarry, one that yielded sandstone, but this was given up even before the First World War.

[4] Both the municipality's constituent communities have generally grown together to form a single residential area, although the village still clearly bears the marks of the former separateness.

The Kreimbach floodplain is a major living area, explaining why this "half" of the village has a greater population figure.

Unlike the railway, the through road cuts across the bow in the river Lauter and leads straight through the Ortsteil of Kaulbach.

According to Ernst Christmann, the Celts built a refuge castle on the Kreimberg plateau for times of discord and war, with a stone ringwall standing as its main feature.

Only once the Romans found themselves more and more beset by Germanic tribes, foremost among these the Alemanni, did they undertake to expand the plateau fortifications in the latter half of the 3rd century with walls, gates, palisades and a watchtower.

In the 1990s, extensive archaeological digs were undertaken that unearthed many finds, such as pots (and potsherds) and coins on the Kreimberg plateau.

On the plateau's west side, local history lovers built a small lookout tower in the 19th century out of scattered stones from the castle.

After the Romans withdrew, according to Christmann, the Huns swept through the region – it was the second time – and what they left behind was a land virtually bereft of people.

Permanent settlement, though, only goes back to sometime in the 9th to 11th centuries, according to Christmann, and then beginning on the Lauter's left bank (Kaulbach), although this had already been the site of Saint Michael's Chapel (Michaelskapelle), a meeting point for worshippers from all the places with names ending in —weiler up and down the river.

Professor Christmann himself found in his own home village, Kaulbach, the oldest signs yet of human habitation from the New Stone Age on the hill still known today as Staane Mann (dialectal German for "Stone Man"; it would be Steinerner Mann in Standard High German) in the form of three great remnant pieces of a menhir with an estimated age of between 3,000 and 4,000 years.

[7] The Franks reached the Lauter valley in the 7th and 8th centuries, founding their "—weiler villages": Lohnweiler, Reckweiler, Oberweiler, Rutsweiler.

All together, the two centres of Kreimbach and Kaulbach lay within the so-called Reichsland ("Imperial Land") or Königsland ("King's Land") around Kaiserslautern for a long time, until, beginning in the 14th century it was pledged to a series of lordships, one after the other, with the two villages first passing to the County of Veldenz with the Prince-Archbishopric of Trier, although by the mid 15th century, they had become Electoral Palatinate holdings.

[10] At the time of the French Revolutionary and Napoleonic annexation, Kreimbach and Kaulbach both belonged to the Mairie ("Mayoralty") of Rothselberg, the Canton of Wolfstein, the Arrondissement of Kaiserslautern and the Department of Mont-Tonnerre (or Donnersberg in German), whose seat was at Mainz.

After Napoleon's defeat and the Congress of Vienna, yet another new territorial order came into force, which saw Kreimbach and Kaulbach grouped into the Kingdom of Bavaria as of 1816.

[12] Ernst Christmann drew from the 12 "tax chickens" from Kreimbach that had to be paid to New Wolfstein Castle in 1497 the conclusion that this meant that there were also 12 households there at the time.

Professor Dr. Ernst Christmann traced the first syllable of the name back to a form of the German word Krähe ("crow") that has been corrupted over the centuries.

This particular kind of bird may have found fruitful nesting grounds along the deep Kreimbach valley with its moist and therefore food-rich riverbanks.

[14] Professor Dr. Ernst Christmann declared that the melaphyre stone west of the village on the north side of the Kaulbach (brook) has the characteristic of weathering into ever rounder shapes, shedding one layer after another, rather like an onion.

Other forms of the name are also known from the past: Kulbach (1345), Kullebach uff der Lauter (1446), Kaulenbach (1560), Coulbach (1580) and Kaulbach (1824).

Catholics still have to make a five-kilometre trip to Wolfstein to attend church, where indeed their parish seat has been since days of yore.

In 1875 however, Pastor Philipp Hammer succeeded in having Saint Mary's Chapel (Marienkapelle) built in the village out of his own personal resources.

The German blazon reads: In geteiltem Schild oben in Silber rechts auf goldenem Dreiberg ein blaubedachter, gemauerter roter römischer Wachtturm mit goldenem Umgang, links ein rechtsgewendeter wachsender roter Wolf, unten von Rot, darin drei silberne Kugeln, und Silber, darin zwei steigende schwarze Krähen, durch Wellenlinien geteilt.

Before the 1969 merger, Kreimbach bore arms with the Roman watchtower as the main charge, but it stood on a flat-topped green hill and had a wooden palisade around it in natural colour ("proper" in heraldry).

The blazon read as follows: Von Silber und Rot geteilt oben ein wachsender roter Wolf an einem aus dem linken Schildrand hervorbrechenden natürlichen Felsen anspringend, unten ein Schraglinkswellenbalken, belegt mit drei schwarzen Kugeln.

Dean Hammer, in his time a nationally famous speaker at great Catholic events, lies buried near the chapel.

Now and then, his friend from seminary days, Bishop of Trier Michael Felix Korum would show up, either to preach or hold services.

In all the time until then, each village had steered its own course, not least of all because of the tax revenue that Kaulbach drew from the Palatia malthouse and that drawn by Kreimbach from the stone quarry.

Both Kreimbach and Kaulbach are linked by road to Rothselberg, and onwards to Altenglan and Kusel, as well as the Odenbach valley near Niederkirchen.

Formerly, each of the municipality's two constituent villages had its own stop on this line, but Deutsche Bahn AG has since closed both and built a common station for both centres.