一个典型的箭头在今天的新墨西哥的克洛维斯镇被发现，这是第一次有描述。
A characteristic arrow point was found and first described near the present day town of Clovis, NM.
他停住脚步，翻开画夹，先画了一座座房子和漂亮的云朵，然后，他用紫色写上“紫云镇”几个字和一个无穷的箭头。
"He stopped, turned my portfolio, first drew a house and a beautiful clouds, and then he used to write on the purple" Ziyun town "words and an endless arrow."
他停住脚步，翻开画夹，先画了一座座房子和漂亮的云朵，然后，他用紫色写上“紫云镇”几个字和一个无穷的箭头。
"He stopped, turned my portfolio, first drew a house and a beautiful clouds, and then he used to write on the purple" Ziyun town "words and an endless arrow."
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