Based on the available information, the Alamosa County boat ramp is located in Colorado and has a latitude of 37.66782379 and a longitude of -105.73497009. It is not clear what kind of boat ramp it is or how wide it is from the provided information.

However, it can be determined that the boat ramp services a body of water in Alamosa County, Colorado, though the specific body of water is not stated. It is also not specified what kind of watercraft are permitted on the water.

Without additional information, it is difficult to verify the accuracy of this information or provide further details about the Alamosa County boat ramp. It is recommended to consult official sources for the latest and most accurate information about this or any other boat ramp or waterway.